<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="icon" href="./favicon.svg" type="image/svg+xml">
    <title>文件上传系统 - 首页</title>
    <link rel="stylesheet" href="./lib/css/bootstrap.min.css">
    <link rel="stylesheet" href="./lib/css/bootstrap-icons.css">
    <style>
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f5f5f5;
            color: #333;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }
        .welcome-card {
            background: white;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            padding: 40px;
            text-align: center;
            max-width: 600px;
            width: 100%;
        }
        .welcome-icon {
            font-size: 64px;
            color: #4361ee;
            margin-bottom: 20px;
        }
        .welcome-title {
            color: #4361ee;
            font-weight: 600;
            margin-bottom: 15px;
        }
        .btn-primary {
            background-color: #4361ee;
            border-color: #4361ee;
            padding: 10px 25px;
            font-size: 1.1rem;
            margin-top: 20px;
        }
        .btn-primary:hover {
            background-color: #3f37c9;
            border-color: #3f37c9;
        }
        .features {
            display: flex;
            justify-content: space-around;
            margin: 30px 0;
            flex-wrap: wrap;
        }
        .feature {
            flex: 1;
            min-width: 150px;
            margin: 10px;
            padding: 15px;
            background-color: #f8f9fa;
            border-radius: 8px;
        }
        .feature-icon {
            font-size: 32px;
            color: #4361ee;
            margin-bottom: 10px;
        }
    </style>
</head>
<body>
    <div class="welcome-card">
        <div class="welcome-icon">
            <i class="bi bi-cloud-arrow-up"></i>
        </div>
        <h1 class="welcome-title">欢迎使用文件管理系统</h1>
        <p class="lead">一个简单、高效的文件上传、管理和预览解决方案</p>
        
        <div class="features">
            <div class="feature">
                <div class="feature-icon">
                    <i class="bi bi-upload"></i>
                </div>
                <h5>文件上传</h5>
                <p>支持普通上传和分片上传</p>
            </div>
            <div class="feature">
                <div class="feature-icon">
                    <i class="bi bi-eye"></i>
                </div>
                <h5>在线预览</h5>
                <p>支持图片和PDF在线预览</p>
            </div>
            <div class="feature">
                <div class="feature-icon">
                    <i class="bi bi-folder"></i>
                </div>
                <h5>文件管理</h5>
                <p>便捷的文件管理和搜索</p>
            </div>
        </div>
        
        <a href="./index.html" class="btn btn-primary btn-lg">
            <i class="bi bi-box-arrow-in-right"></i> 进入系统
        </a>
    </div>
</body>
</html>